Space Pen

The Fisher Space Pen was created by Austrian Friedrich Schächter and expanded by Erwin Rath.

In contrast, the standard PR (Pressurized Refill) cartridge is rated to write for over 12,000 feet (2.3 miles or 3.7 km).

The ballpoint is made from tungsten carbide and is precisely fitted in order to avoid leaks.

The thixotropic visco-elastic ink in the hermetically sealed and pressurized reservoir is able to write for three times longer than a standard ballpoint pen.

After extensive testing, NASA decided to use the pens in future Apollo missions.

[10][11] In 2008, Gene Cernan's Apollo 17-flown space pen sold in a Heritage auction for US$23,900.

An AG-7 Astronaut Space Pen in presentation case.
Bullet pen.
Astronaut Walter Cunningham, Apollo 7 lunar module pilot, writes with space pen as he is photographed performing flight tasks on the ninth day of the Apollo 7 mission.